- Companies
- Plumbers and heating engineers
- London
- Index Engineering Ltd
Index Engineering Ltd
- Company number
- 16901064
- Incorporated
- 9 Dec 2025
- Registered office
- Flat 1, 214 Westferry Road, London, E14 3RR
- Nature of business
- Plumbing, heat and air-conditioning installation
Index Engineering Ltd is a newly incorporated private limited company registered in London, company number 16901064, one of 2,972 plumbing and heating companies in London. Its next accounts are due at Companies House on 9 September 2027, and its first CT600 is due at HMRC on 8 December 2027.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Where Index Engineering Ltd is registered
The registered office is in London (E14), in the Tower Hamlets local authority area, London. Show E14 3RR on a map.
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What happens if Index Engineering Ltd files late
Companies House charges an automatic penalty the day after the deadline, and it rises the longer the accounts are late. These are the dates for this company's accounts due on 9 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 10 Sep 2027 to 9 Oct 2027 | £150 |
| 1 to 3 months late | 10 Oct 2027 to 9 Dec 2027 | £375 |
| 3 to 6 months late | 10 Dec 2027 to 9 Mar 2028 | £750 |
| More than 6 months late | From 10 Mar 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 2028 | another 10% of any unpaid tax |
For returns filed on or after 1 April 2026. Late three times in a row and the £200 penalties become £1,000 each.
Company details
As held on the Companies House register.
- Company number
- 16901064
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 9 December 2025
- Registered office
- Flat 1, 214 Westferry Road, London, E14 3RR
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 December (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for plumbing and heating companies
Plumbing and heating companies frequently work under CIS for main contractors and also directly for homeowners, so turnover can mix CIS and non-CIS income.
Similar companies in London
Other active plumbing and heating companies registered in London.
- Infinite P&H Ltd2023
- Infinity Climate Solutions Ltd2025
- Infinity Heating & Plumbing Ltd2024
- Infinity Heating Solutions and Property Maintenance Ltd2022
- Infinity Maintenance Solutions Ltd2021
- Inner Warmth Limited2006
- Innovion Ltd2019
- Insignia Group Limited2019
All plumbing and heating companies in London · All trades in London · Plumbers and heating engineers across the UK
Frequently asked questions
When are Index Engineering Ltd's accounts due?
Index Engineering Ltd's next accounts are due at Companies House by 9 September 2027 (in 332 days), covering the period to 31 December 2026.
When is Index Engineering Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 8 December 2026, due by 8 December 2027, and one for the period to 31 December 2026, due by 31 December 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Index Engineering Ltd still trading?
Index Engineering Ltd is listed as active on the Companies House register as of 1 Oct 2026. Active means it has not been dissolved or entered insolvency; it does not show whether it is currently taking on work.
What does Index Engineering Ltd do?
Index Engineering Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Index Engineering Ltd?
Index Engineering Ltd was incorporated on 9 December 2025, less than a year ago.
What is the penalty if Index Engineering Ltd files its accounts late?
Companies House charges £150 if the accounts are up to 1 month late, £375 up to 3 months, £750 up to 6 months and £1,500 after that, doubled if the previous year's accounts were also late. HMRC charges £200 for a CT600 filed a day late and another £200 at 3 months.
Official records
View Index Engineering Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026). Deadlines are worked out from the register and assume a standard accounting period; a change of year end or a short period moves them. This page is general information, not tax or accountancy advice.